Patent EA-002467-B1 (EA)
Title: Method for generating an image in systems having objects moving with respect to each other
IPC: G09F21/04
Filed: 2001-06-06
Abstract: 1. A method for generating an image in systems having objects moving with respect to each other, comprising steps of: - dividing each frame of an image being generated into fragments each consisting of one or more image elements and arranging along the path of relative movement of an object receiving the visual information; - generating each image frame with the aid of a scan by a separate light emitter array each of which is fixed relative to other light emitter arrays with a predetermined pitch between the light emitter arrays along said direction of relative movement of an object receiving the visual information, and at a predetermined nonzero angle with respect to this direction; - choosing the frame scanning rate by each light emitter array such that the fragments constituting this frame are sequentially displayed by this light emitter array at least once until this light emitter array is within the visibility range of an object receiving the visual information; - synchronizing the beginning of a scan of each frame of an image being generated with the moment of falling an object receiving the visual information within the visibility range of a separate light emitter array with a relative movement of the object receiving the visual information and said light emitter arrays, characterized in that the method further comprises steps of: - tracking, in the process of displaying each fragment in the frame, tracking a transverse shift of an object receiving the visual information from said direction of the relative movement of the object; - correcting a fragment position when generating an image by the light emitter array emitting at the given moment, in order to compensate for said transverse shift by a corresponding shift of the fragment being displayed at the given moment, in the same transverse direction from said direction of the relative movement of the object. 2. The method as claimed in Claim 1, characterized in that the method further comprises steps of: dividing the light emitter arrays into groups, and mounting each light emitter array in each group with respect to other light emitter arrays in this group with a shift in a transverse direction from said direction of the relative movement such that said shift is smaller than a pitch between light emitters, wherein mounting, in each of said groups of light emitter arrays, one of these arrays at the same predetermined level, carrying out the correction in generating the image by using only those light emitters in each array that are located within the predetermined boundaries in the transverse direction from said predetermined level with regard of the tracked transverse shifts of the object receiving the visual information. 3. The method as claimed in Claim 1, characterized in that the method further comprises steps of: tracking changes of a longitudinal velocity in moving the object receiving the visual information, and correlating a frequency and duration of displaying each fragment of the frame of the image being generated with a varying speed of the transverse movement of the object receiving the visual information. 4. The method as claimed in Claim 1, characterized in that the method further comprises steps of: tracking conditions of generating the image by each light emitter array, and correcting a brightness and/or color of each light emitter of the given array in accordance with these conditions. 5. The method as claimed in any of the preceding Claims, characterized in that said steps of dividing each frame of the image being generated and subsequent displaying the fragments produced are carried out dynamically in the process of tracking the corresponding movements of an object receiving the visual information and/or conditions for generating the image. 6. The method as claimed in any of the preceding Claims, characterized in that the light emitter arrays are mounted at different distances from the trajectory of the moving object receiving the visual information. 7. The method as claimed in any of Claims 1-6, characterized in that the light emitters in are mounted said arrays at different distances from the trajectory of the moving object receiving the visual information.